MS-LS2-2
Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.
- Animals
Bottlenose dolphin moms baby talk when their calves are near
Around their babies, bottlenose dolphin moms whistle with higher pitches. It’s similar to human parents speaking in baby talk.
- Ecosystems
Scientists Say: Predator and Prey
Ecological relationships between predators and their prey drive the evolution of plants, animals and microbes.
- Animals
Northern elephant seals snooze only two hours a day at sea
These marine mammals sleep only minutes at a time on months-long trips at sea.
- Animals
Scientists Say: Coral
Over 4,000 species of fish make their home among the reefs created by these colony-dwelling marine animals.
- Tech
A device spots and counts honeybees hosting a dangerous parasite
At Regeneron ISEF, three teens debuted an infrared system to detect honeybees carrying mites. It can show beekeepers when a colony needs to be treated.
- Ecosystems
Scientists Say: Food web
All the species in an ecosystem and the feeding relationships between them get summed up with this handy picture.
- Animals
People and animals sometimes team up to hunt for food
Dolphins working with people to catch fish recently made a big splash. But humans have a long history of cooperating with other animals.
- Animals
Sleeping glass frogs go into stealth mode by hiding red blood cells
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
- Animals
Analyze This: Puppies naturally mimic human actions
Unlike cats, whose ancestors hunted alone, dogs evolved from a species that hunted in packs. Being social might explain why pups copy humans.
- Microbes
Bacteria give some cheeses their distinct flavors
Linking types of bacteria to specific flavors could help cheesemakers tweak their products — or even develop new cheese flavor.
- Animals
This parasite makes wolves more likely to become leaders
Gray wolves infected with Toxoplasma gondii make riskier decisions. This makes them more likely to become pack leaders or strike out on their own.
- Microbes
Mouth-crawling superbugs cause severe cavities in kids
In kids with severe tooth decay, fungi and bacteria team up to create superorganisms that can crawl across teeth.
